RESUSCITATION WITH AUTOMATED DEVICES:HAEMODYNAMIC COMPARISON BETWEEN LUCAS AND AUTOPULSE IN A PORCINE MODEL

2014 
Background: Cardiac output generated from chest compressions during resuscitation manoeuvres can predict effectiveness and successful outcome. During manual chest compressions, blood flow to the vital organs is generally impaired because the quality of manual chest compressions is significantly inferior than that recommended by international resuscitation guidelines. Furthermore, it is difficult to perform effective chest compressions during transport. Automated devices have been designed to improve cardiopulmonary resuscitation and some of these have shown to improve haemodynamics and short term outcome. No comparative studies have been done. In this study we compare LUCAS and Autopulse. Methods and Design: Experimental study in 24 Yorkshire pigs. Haemodynamic variables and end-tidal CO 2 were determined during a period of resuscitation in the supine position. These variables were compared between groups. Results: Haemodynamic parameters were analyzed by means a longitudinal general lineal model (GLM). Significant differences in cardiac output and end-tidal CO 2 were found (p-value Conclusions: LUCAS and Autopulse were effective generating and maintaining enough cardiac output and coronary perfusion pressure. The present study suggests that the LUCAS device may be superior to Autopulse when comparing cardiac output and end-tidal CO 2 generated during cardiopulmonary resuscitation but no differences in coronary perfusion pressure have been found. Key Words: Cardiopulmonary Resuscitation, Haemodynamics, Cardiac Output, Automated Devices.
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